Some more infos about those problem: svnadmin verify tells me the revision in question is ok in the source repo. Using vim to view the revision dump show those 2 utf-8 chars at the end of the path which i guess are making trouble:
Projektprofile/EMS(Newsletter, Infomails, À¦).doc Maybe someone got some nice ideas ;)
smime.p7s
Description: S/MIME cryptographic signature